短語詞組短語magnetic c substance 磁性躰magnetic spectroscopy substance 磁性材料amorphous magnetic substance 非晶磁性物質(zhì)weakly magnetic substance 弱磁性物質(zhì)non magnetic substance 非磁質(zhì)non -magnetic substance 非磁性物質(zhì);非磁性躰perfect magnetic substance 完全磁性躰magnetic substance content 磁性物含量the coated magnetic substance 磁包覆 返回 magnetic substance